高能中子束两种体内剂量测定方法的比较。
A comparison of two methods of in vivo dosimetry for a high energy neutron beam.
作者信息
Blake S W, Bonnett D E, Finch J
机构信息
Physics Department, Clatterbridge Hospital, Merseyside.
出版信息
Br J Radiol. 1990 Jun;63(750):476-81. doi: 10.1259/0007-1285-63-750-476.
Two methods of in vivo dosimetry have been compared in a high energy neutron beam. These were activation dosimetry and thermoluminescence dosimetry (TLD). Their suitability was determined by comparison with estimates of total dose, obtained using a tissue equivalent ionization chamber. Measurements were made on the central axis and a profile of a 10 x 10 cm square field and also behind a shielding block in order to simulate conditions of clinical use. The TLD system was found to provide the best estimate of total dose.
在高能中子束中对两种体内剂量测定方法进行了比较。这两种方法分别是活化剂量测定法和热释光剂量测定法（TLD）。通过与使用组织等效电离室获得的总剂量估计值进行比较来确定它们的适用性。在中心轴上以及10×10平方厘米方形射野的剖面上进行测量，并且还在屏蔽块后面进行测量，以模拟临床使用条件。结果发现TLD系统能提供最佳的总剂量估计值。
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